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AJNR Am J Neuroradiol ; 41(10): 1943-1948, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32855188

RESUMO

SGPL1 encodes sphingosine-1-phosphate lyase, the final enzyme of sphingolipid metabolism. In 2017, a condition featuring steroid-resistant nephrotic syndrome and/or adrenal insufficiency associated with pathogenic SGPL1 variants was reported. In addition to the main features of the disease, patients often exhibit a range of neurologic deficits. In a handful of cases, brain imaging results were described. However, high-quality imaging results and a systematic analysis of brain MR imaging findings associated with the condition are lacking. In this study, MR images from 4 new patients and additional published case reports were reviewed by a pediatric neuroradiologist. Analysis reveals recurring patterns of features in affected patients, including isolated callosal dysgenesis and prominent involvement of the globus pallidus, thalamus, and dentate nucleus, with progressive atrophy and worsening of brain lesions. MR imaging findings of abnormal deep gray nuclei, microcephaly, or callosal dysgenesis in an infant or young child exhibiting other typical clinical features of sphingosine-1-phosphate lyase insufficiency syndrome should trigger prompt genetic testing for SGPL1 mutations.


Assuntos
Aldeído Liases/deficiência , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Erros Inatos do Metabolismo/diagnóstico por imagem , Erros Inatos do Metabolismo/patologia , Aldeído Liases/genética , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Erros Inatos do Metabolismo/genética , Mutação , Síndrome Nefrótica/enzimologia , Síndrome Nefrótica/genética , Síndrome Nefrótica/patologia
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